Blocked polyisocyanates, their preparation and use in one-component coating materials. The methods can include contacting a population of CD4+CD25\u2212 T cells with a T cell receptor CD3 activator, a TCR co-stimulator activator, and rapamycin. The SCN assembles the data into a string and includes a feature access code. The second jig is provided with grip parts for gripping the second jig during its movement. The foregroundbackground separation module receives the image signal and the decision signal, and outputs a foreground signal and a background signal, a representation of the current pixel of the image signal being included in at least one of the foreground signal and the background signal in accordance with the decision signal.